Rowan's head cocked to the side, as he looked towards the left, the three Ouroboros Serpents he had sent to kill Scarvros were done, and Rowan was suspicious that the man had no Spatial Artifact, but after musing on it for a while, Rowan placed the reason because of the presence of Realms.
He had spectated the entire battle and part of the energies the man was flinging about, especially the Green Wind, felt very different from techniques related to Ability Runes.
He did not use any Aether to power these techniques, and he seemed to be able to call up a massive amount of wind at his choosing without any pause.
Rowan did not let this victory get to his head. This was only a Guardsman, and he was likely among the weakest among Second Circle Dominators. A true member of the Boreas bloodline would have powerful weapons and abilities far above Scarvros, and it was likely that a Dominator at that level would pose a threat to him.